Pressing machine



Sept. 13, 1932. E. DAVIS PRESSING MACHINE Filed Jan. 23. 1929 INVENTOR. WM-

ATTORNEY.

Sept. 13, 1932. E. DAVIQS PRESSING MACHINE Filed Jan. 25, 1929 I N VEN TOR.

A TTORNEY.

Patented Sept. 13, 1932 v ERNEST DAVIS, 01 SYRACUSE, NEW YORK, Ass'I'eNon' Inc, or SYRACUSE, NEW 'YoRK, A eoR-ronATIoN or NEW YORK I PRESSING MACHINE Application filedl'anuary 23, 1929, Serial no; 334,493.

This invention relates to pressing machines as garment and laundry pressing machines, and has for its object a particularly simple and efiicient arrangement of the cooperating pressing elements, by which heavy pressure is applied by the lower presslng element, and a fluid, as steam or air, or both, is blown through the lower pressing element and the work, and also through the padding on the lower pressingelement. Preferably air is blown to remove the moisture from the padding or the work-during the pressing operation and also, if desired, for drylng the padding when the machine is open.

The invention consists "in the novel features and in the combinations and constructions hereinafter set forth 'fand claimed- .In describing this invention, reference 1s had to the accompanying drawings in wh ch like characters designate corresponding parts in'all the views. e

, Figure 1 is-a side elevat on of apresslng machine, embodying my, inventlon, as a power operated machine.

Figure 2 is an enlarged sectional view through the buck or lower presslng element.

Figure 3 is a partly diagrammatic view illustrating the manually operated valves, these being shown partly in sectlon;

Figure 4: is a plan view of the buck. I M

Figures 5 and 6 are Views similar to Figures 1 and 3 illustrating the invention embodied as a foot operated machine.

I have here shownumy invention as ap plied to the conventional type of presslng machine including a buckl, a head 2 movable toward and from the buck, the buck havmg an upwardly movable top on presslngwall which is it'oraminous or perforated, and means for applying internal pressure to the buck to move said wall upwardly and to blow air through the top wall, the padding overlying the buck, and the garment orother article being pressed. p

The blowing of air or other fluid relieves or softens the initial shock of the head coming on the work. The work is pressed against the head so that at rfirstaipressure is very light orithe work is merely touching against the head, while the air or other flllld' iszpas'sin'g" through the pervious upper wall of the expansible chamber and through the padding and ,work; Thereaftenthe pressure increases when the workis pressed against the head, orthe head against the work, with sufficient force to'retard the passage of the fluid through the pervious top wall. Thisoperation' is particularly advantageous when operating upon certain classes of goods as it avoids a sudden bringing down or slamming of the head on the work with a sudden pressur". c Q

The buck 1 includes a base .3 mounted on a suitable bracket or goose neck 4, which in turn is mounted upona table 5 supported byframing G of The head 2 is carriedby'the" conventional lever or yoke 7 pivoted between itsends at 8 to-a standard 9 rising fromzthe frame;

Th'ehead may be actuated by any suitable mechanism either by foot or power, and as here shown, the mechanism for actuating the head in addition to the lever 7 includes toggle links 10 and 11' pivoted at 12 and 13 to the reararm of the yoke lever and to the base of the frame respectively and pivoted together at 14. The link 11 hasa forwardlyextending arm" 15 to which poweris applied. In Figures 1 and 3, the power is applied to the arm 15 by a cylinder 16 having the rod '17 of its piston pivoted at 18 to the for ward end of thearm 15. The piston is single acting "and oscillating. hen the press is closed and the pressure applied to the in ternal chamberof the buck, as will be pres ently described,,the press "is held closed by the fact that the toggle linkslO, 11 are in adeadfcenter line or slightly beyond the dead centerflline. j Theyhead is opened, when the forces tending to'hold it closed are released, bysprings'l9 and 20. In Figures 5 and 6, the forwardly extendingv arm 15 is shown as formed with a pedal plate 21 by means of which the head is brought down ontothe buck. v

Thebuck 1, in addition togthe base comprises an extensible and compressible chaman suitable construction;

TO THE PROSPERITY COMPASNY her 23 the top wall'of which moves upwardly;

band 29' enclosing the lower margin of the padding and the base of the buck, this band be g a pe f= t g t ne 10 e Paddin Preferably, a

in any suitable ,manner are lonumber of compression springs cated in the chamber which thrust atLtheir from the casing at a point between the valves. :3

' chamber 'flow ofair' under pressure I 1 lower ends against the base or a plate 31 overlying the base and to which-all of the springs are secured at their lower ends, and

attheir upper ends against the perforated plate "27; The springs normally hold the 23. exp'anded or extended before'the head is brought down on the buck.

' '[In the form shown in Figures 1 and 3, the d to the cylinder 16 is controlled by manually operable valves comprising a valve casing 32 having a nor- "mally closed spring pressed intake valve 33 therein and a normally open exhaust valve '34. An-inlet pipe 35 connects to one end of the valve casing and anoutlet pipe leading and is connected "to the head of the cylinder '16. The valvesiare connected together by a stem .37 so that they act as aunit; f

' The'valves are operated by manual means, as a push button 38, acting on a lever 39 which in turn acts upon another lever 40 which thrusts against the"stem' 4l of the exhaust valve 34. i A spring 42 returns the push buttonto its normal position when released.

- Obviously, depressionof the push button 38 will permit the air to flow from the inlet pipe 35 to the cylinder 16 to actuate the piston therein and bring the head down against the work on the buck and compress the buck into the position'shown in dotted lines, Figure 2.

For additional pressure and for blowing air through the work on the buck, manual ineans is provided 'for' controlling the flow of compressed air to the chamber 23. This means comprises a valve casing 43 having a normally closed spring pressed intake valve 44 therein and a normally open exhaust valve 45, .thesevalves being operated'by a push button 46 and levers 47 and 48 similar to the the buck by a pipe'51;

In order to hold the valves 44 and in their operated position, pressure operated means is provided consisting of a diaphragm chamber 52- having a diaphragm 53vtherein acting upon asliding stem54which in turn acts onthe lever 48. The pressure 'sidef'oi the'valves' are" so operated, air will also pass through the duct 55 tothediaphragm chamber 52 actuating the diaphragm 53 therein to hold the lever 48 in its operated position.

To release the pressure in the chamber 23, means. is provided for exhausting the air from the pressure side of i the diaphragm chamber 52, this means consisting of a valve casing 56 having a normally closed spring pressedexhaust'valve 57 therein, the casing being connected by'a pipe 58 to the pressure sideof the-diaphragm chamber 52. The eX-, haust valve'57 is operated by a release lever 59 groupedwith the push button 46.

i In'operati'on, the operator after laying the work .on thebuck, depresses the push'button '38 permitting air to flow to the cylinder 16 and actuate the piston therein and while holding down the push button 38 depresses the push button 46' to-j permit air to enter the pressurechamber 23. When the pressure is applied to the chamber 23, the operator mayreleasebothpu'sh buttons and the press will, be 'heldc'losed byreason of the force applied to the head from the expanded buck against'th'e' straightened toggle, although as soon as the'ope rator releases the push button 38 the air is free to exhaust from the cylin; der 1 6,-back through-the pipe to the valve casing 32 and out through the passage controlled by the exhaust valve 134. While the garment or other article is being'pressed, airis blown through the padding and the garment, to 'dry'it,-from the internal cham-, her 23.) 1

To open the press, the releaselever 59 is operated and as soon as the upward pressure of the chamber 23; is released, and hence the thrust on the'toggle relieved, the springs 19 and 20 react to open the press.

When the press is'opened, the push button 46 may be depressed to; cause air to blow through the buck and dry the padding.

In the v form shown in Figures 5 and 6, the

operator depresses the pedal'21 to close the press and holds" his foot on the pedal 21 until the lower buck is underair" pressure. p

In Figure 6, a two hand control is provided forjcontrolling the flow of air to the pressure chamber in the lower buck, and the valves are of the same construction as'those shown in Figure 2, with the exception that both, valves are provided with diaphragm chambers and diaphragms therein corresponding to diaphragm chamber 52 and diaphragm 53.

In Figure 6, both push buttons must be depressed Depression of the push buttons 60 and opens the intake valves 62 and 63 in the valve casings 64: and 65 respectively and closes the exhaust valves 66 and 67 so that the air passes from the feed line 68 through i the valve casing 65, thence through pipe 69 to the valve casing 64:, thence through pipe7O to the internal chamber of the buck. Air passes from valve casing 64:, through duct 71,

to diaphragm chamber 7 2 and locks the valves operated by the push button in their operated positions, and also passes from the diaphragm chamber 72, through pipes 73 and 74C, to the diaphragm chamber 75*01 aval ve mechanism operated by the" push button 61.

To open the press, the release lever 76 is operated to open the exhaust valve 77, the cas-' ing 78 of which is connected by a pipe 79 to the pipes 7 4 and 73. r

Obviously, both bush buttons 60 and 61 must be operated sinceif the button 60 only is operated, no air will flow from the feed pipe, and if the button 61 only is operated the air Will'pass from the valve casing63 through pipe 69 to valve casing Gtand out through the port controlled by the exhaust valve 66.

I In either form of my invention, the pres sure is applied by first bringing the head down on the buck and compressing the compressible chamber against the springs in the chamber. Pressure is applied by internal pressure in the buck, and While pressure is being applied to the buck, the air is blowing out through the foraminous top of the pressure chamber of the buck through the padding and the Work thereon. The air may be blown through the Work on the buck When the head is open by depressing the push button 46 in Fig. 3, or push buttons 60 and 61 in Fig. 6.

. l/Vhat I claim is l. A pressing machine including a buck having a compressible chamber, a head movmeans for controlling the flow of a fluid to said chamber to expandv the same against the head, and springs in said chamber for resistlng compress on thereof.

In testlmony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga, and in the State of New York, this 12th day of January, 1929.

. ERNEST DAVIS. 

